Study of Circumferential Grooved Casing Treatment on Cascade Aerodynamic Performance

To explore the influence of circumferential grooved casing treatment on subsonic cascade performance, a numerical simulation of subsonic cascade was conducted. In contrast to traditional research on variable single parameters for casing treatment, this paper used the Latin hypercube sampling method...

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Bibliographic Details
Published in:Aerospace 2023-08, Vol.10 (8), p.666
Main Authors: Tan, Jingbo, Zhang, Chun, Zhu, Huiling, Zhou, Ling, Ji, Lucheng
Format: Article
Language:English
Subjects:
Boundary conditions
casing treatment
circumferential grooved
Comparative analysis
compressor cascade
Correlation analysis
Design
Efficiency
Grooves
Hypercubes
Latin hypercube sampling
Numerical analysis
Numerical simulations
Parameters
Pressure loss
Sampling methods
Simulation
Simulation methods
Turbulence models
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Summary:To explore the influence of circumferential grooved casing treatment on subsonic cascade performance, a numerical simulation of subsonic cascade was conducted. In contrast to traditional research on variable single parameters for casing treatment, this paper used the Latin hypercube sampling method to randomly sample multiple geometric parameters of casing treatment and compared many sample data with the total pressure loss of the cascade as a measurement standard. After selecting several typical cases of high and low total pressure loss cases for in-depth flow field analysis, it was found that casing treatment affects the strength and structure of the leakage vortex, thereby reducing the blockage of fluid in the passage of the cascade. Changes in the total pressure loss and in the margin of the cascade meant that casing treatment affected cascade performance. This prompted analysis of the correlation between the casing treatment parameters and total pressure loss of the cascade. The clearance height and groove depth had the greatest influence on the total pressure loss of the cascade.
ISSN:2226-4310
2226-4310
DOI:10.3390/aerospace10080666